Area Codes for Atlanta, Georgia

There are several area codes actively in use in the Atlanta metropolitan area, including: 404, 770, 678. The 404 area code covers Atlanta proper as well as nearby surrounding towns, such as College Park, Forest Park, and Sandy Springs. The 678 and 770 area codes extend well beyond the coverage of 404 and include more distant locations such as Alpharetta, Marietta, Lawrenceville, and Smyrna. Beyond these Atlanta area codes, a number of area codes are used elsewhere in Georgia.

In Atlanta, area codes are always included in written telephone numbers and area codes must be dialed for all calls, even for local calling. All US phone numbers are 10-digits total, including a 3-digit area code and a 7-digit local subscriber number.

Area codes are used to route phone calls to a specific geographic area within a country. All area codes in the United States are exactly 3-digits long.

In the past, a given region often had just one area code. Nowadays, many cities and towns in denser urban areas, including Atlanta, have 2 or more area codes.

To make an inbound international call (or domestic long distance call) to a Atlanta landline or mobile phone, you need to dial the appropriate 3-digit area code, followed by a 7-digit local subscriber number.

If you don't have a fully specified 10-digit phone number, including area code, you will not be able to complete an inbound call.

Area code 470 is a planned overlay for the Atlanta region. It is not currently in service.

To accommodate demand for new phone numbers, Atlanta has added 'overlay' area codes - meaning that as new phone numbers are needed, a new area code is added within the footprint of an existing area code(s). For instance, the area codes 770 and 678 are overlays on the original 404 Atlanta area code.

Lookup Atlanta Area Codes

To find the area codes (or ZIP codes) used in the Atlanta area, please use the WhitePages.com search widgets. The first widget looks up area codes and ZIP codes by town. The second widget does reverse lookup by area code or ZIP code.

Georgia Area Code Map

City Codes vs. Area Codes

In some cases, area codes may be referred to as city codes. However, a 'city code' more correctly refers to the codes used to designate airports and other geographic locations. These codes are issued under the United Nation's UN/LOCODE system and/or the IATA airport coding system. The city code for Atlanta is ATL.